What time has it been, and there are people who don't know the word "brown" until the day when they're in the ground? Back home two days ago, uncle zhang was crouching in his thighs: “the onions i planted last year, i sprung all over the spring like a firecracker, sold less than 3,000 dollars in an acre and didn't even get the fertilizer back!” i knew that he was in a “convenient”。
The most taboo is the dead mind. It's just an aerobic symbol. It's not an alarm clock, and it's not a calendar alarm on your phone. What really determines the high and low harvest is whether you understand the sky, see it, see it. One wrong step, and the flowers bloom, six months of hard work。
This article today, i've broken and opened up all of you about the bends of the white onion seed, the blood and tears of the older generation, the scientific principles of the agro-academic experts. When you're done, you can be half-on-on-the-ground in the village. The content is long and dry, and it is recommended that the collection be forwarded first, and that it not be found when it comes to planting。
One, don't die until it's revealed. The one who dies is alive, and the old man is fucked
Let's get this straight. The onions are seeded before and after the autumn tumours, with the seedlings rising in winter, returning to the spring and harvesting onions in may and june. It's the same thing as the spring-planted onions. The main image of the white onions is the mornings, long whites, high yields。
But the problem is in this “back and forth”. How many years ago the old saying: "blub, onions," but the old saying is specific to a particular area, and the climate of decades ago is the same as it is now
This year's euphoria is 7 september, and if you live in the north east of the henan river, it's right to sow; but if you live in the north of jiangsu anhui lake, where the latitude is wide south, the temperature is slow in the autumn, you're white, the seedlings are tall and strong in the winter, and you look at the happy people, but the winter's cold “spring” starts to bloom in spring. It's half-baked, half-baked, half-baked
In turn, in some cold areas in the north-east and north-west, it is too late to plant whites, and when the frost comes, the seedlings do not take root, and they freeze to death to half, and they do not produce。
So, the word "white onions" has the core of "onions" and not "onions." it's just an approximate frame of reference, and you're really staring at temperature and age。
What's with the cut? I'll tell you about science
Let's start with this one of the most deadly things. Many old irons have been growing for three or four years, or they don't know why there are bouquets full of years, and there are years when there are none。
Onions are typical green spring plants. Don't be frightened by the word, the big white saying is that the onion must grow to a certain size (specified number of leaves, thickness of prosthesis), and that after a period of low temperature (usually 0°c to 10°c for a period of time), the “flower switch” in its body is torn apart. Once this switch opens, as soon as spring temperatures come up, it's ready to bloom and complete the instincts of the progeny。
There are two key points in this: the onions are big enough to be cold enough. If the seedling grows too big before winter, with a mantle of more than 0. 8 centimetres thick and more than five or six blades of leaf, it is not surprising that it has completed springing comfortably throughout the winter. In turn, if the seedling is too small, like a needle, and does not smoke a needle, it can't survive the harsh winter, freeze to death, slow to go back to the youth, and do the same。
So, the core technology of seeding on the white field is one thing: to produce just the size, size and size of a seedling before winter. The ideal criterion is that before winter (before the soil freezes), onion seedlings have three to four leaves, 20 to 30 centimetres tall and the base of the mantle does not exceed 0. 6 centimetres in diameter, i. E. The size of a chopstick. A seedling like this will be safe for the winter and will not be able to survive through springing, spring and youth, white and thick and long。
You've been planting 10 and a half days, and the size of the seedlings before the winter is one grade, and the harvest is full of grass. This is the scientific code of "one step in the wrong direction, half of the product."。
Iii. Best seeding window in all parts of the country
It's the land's worst taboo about cooking. The country is a vast country, and i've been combing out the golden period of seeding onions based on climate data and agricultural extension experience for almost 10 years. Attention, this is planting time, not planting time, and onions are mostly live or seeding, as we have seen in the case of the winter seedlings。
• cold areas in the north-east and the north of inner mongolia and the north of xinjiang: these are short autumns and the winters are intense. The best broadcast period is between mid-august and the end of august, before and after the summer. Must not be dragged to the whites, otherwise the seedlings will freeze without taking root. Some friends say we're fine with the whites. That's when you're holding a small arch. In the case of the field, the seeds were planted in the second half of august。
• the northern plains of china (hebei, shandong, south-central hill, kyingjin region): this is the classic onion production area. But it needs to be fine-tuned. The safest time was between 1 september and 10 september, a few days before and after the white air. If the tiger was particularly strong in the autumn and the temperature continued at more than 30 degrees in early september, it would have been possible to push back slightly by two or three days; if the autumn came early, it could have done so by the end of august. This area is basically able to step on a bit of white, but it's not gonna die on that day。
• huang huai, jiang huai region (central south of henan, north of anhui, north of jiangsu): this is a disaster-stricken area! A lot of the old people live in white and white, and there's a lot of smoke. These sites have to be postponed until late september and early october, around autumn. Selected days from 25 september to 5 october to ensure that pre-winter age is not exceeded. If your family's in this area, take a note immediately: don't be white! Don't be white
• middle-downstream areas of the yangtze river (hupei, hunan, north-west of the gang, south-south of anhui river and north of zhejiang): there's a lot more white onions here for early spring. The broadcast could be further postponed until mid-october to early november. With relatively cold weather at the beginning of the fall and winter, the seedlings are small in winter, or even two or three leaves, but the roots are well developed, and the spring warms up and grows at a high rate, just as it avoids stinging。
• some parts of south-west and south-west china: the climate is too warm, winter temperatures are low, traditional onions are extremely risky to grow in winter, are easily unscathed, and are more recommended for seed-resistant varieties or for spring-spring summer harvests. If it is necessary to try, it is possible to opt for special late-night seeding varieties and to breed before and after the coldest winters in the region, with a blurring of spring。
Take what you can't: an average temperature. When the average temperature stabilizes to 20°c to 22°c, it's your best planting period. Buying a thermometer is better than turning the clock。
Iv. Improper selection of varieties
Time is right and the varieties are not up to date. Onions of white are of a strictly ecological type. You have to choose the winter-crop species and focus on extraction。
There is also a lot of detail on what is common in the market, such as the “chinese onions” and the “stamp onions”. To go to a regular seed shop, a special type of onions known as “hot, late and cold”. Some of the varieties are onions, some are dry, you have to understand. Remember not to plant onions with spring onions, which can reach 80%. When you buy a seed, look at the packing instructions and find the words “appropriate for planting in the autumn, spring night”。
Five: except for the planting time, these four points are bad, and they're too late
A lot of people say i've got a lot of time. Because you ignored the four invisible killers below。
1. The sowing density is too high: the seedlings are soaked as to be free of money, the seedlings are squeezed into grass, they are tall, they look long, but they are thin, they are extremely weak and resistant to cold, and they compete for water, and they tend to feel cold too early. Controlling the volume, an acre was planted from 1. 5 to 2 kg of top sky, evenly distributed with fine sand, and the seedlings were distributed immediately after they were released, with a distance of 2 to 3 cm。
2. Water fertilizers: in case of insinuation before the winter, urea is administered with one strength. The leaves are dark and green before winter. Congratulations on the perfect “materials” for spring. At the heart of pre-winter management is a “controllable push” that lays the roots down and ends on the ground. Freezing water once before the freeze is applied, combined with the pursuit of fertilized farm or phosphate fertilizer, less nitrogen fertilizer. Upon return to youth, the timely pursuit of fattening and prompting them to quickly enter nutritional growth and to suppress reproductive growth with the advantage of growth is the last line of defence against later suction。
3. Soil sheeting, poor air intake: onions are stubble systems, which tend to relax. The land is hardcore and cold in winter, with fragile roots and diseases. Pre-shows are fine, deep-tilled to the point of decomposed organic fertilizers, either rises or flattens, ensuring that water is not accumulated。
4. Neglect of pests and frosts: winter droughts, combined with cold winds, are prone to freezing and death onions, and survivors suffer severe injuries. The conditions are to cover a thin layer of dung or straw before winter, or to erect an improvised wind barrier. At the same time, attention is paid to the prevention of onions, purple spots and, when the seedlings are weak, they are more susceptible to springing and seducing。
Six, three old-fashioned "cards" side
The wisdom gathered in the village, sometimes better than the instrument, shared three:
• see the leaves: the leaves of the yang begin to turn yellow, and the leaves of the eels fall, which is almost a signal from the north china。
• seeing wheat: a week to 10 days before winter wheat is planted is a good time for a white onion. The agricultural proverb says, "eats grow early, onions grow well." you follow the local wheat season, you're right。
:: days: between 40 and 50 days to sow from your local calendar year, on average. This is about 50 days old in winter。
What if it's early or late? Urgent remedies
There's always a time when the fields fail。
Early and overstretched: immediate cessation of the pursuit of nitrogen fertilizers, control of water irrigation, proper planting of roots to inhibit growth. Before winter, if the seedling has exceeded its target, a third of the upper leaf can be cut off to reduce nutritional accumulation, but the cutting must be accompanied by timely fungicides to protect the wound and can no longer lead to fattening. Another option is to deliberately delay the application of frozen water, to allow the seedling to experience mild drought and to keep it healthy. If there are signs of stinging after spring, see a stinging, so that it doesn't hurt, the sooner it gets out, the nutrients come back, and the onions next to it can be saved, while the water is so fat that it pulls back。
It is too late and thin: a thin sheet or small cap sheet can be buttoned up before winter, warm the ground, delay the life of the seedling for a few more days. Increased cold resistance through the mixing of appropriate root agents with frozen water. When you return to youth, do not pour water, wait for the temperature to rise and stabilize, and then the membrane to warm up and chase the sapling。
Eight, 2026, key calendar for onion planting. Just do it
In the light of this year's climate projections (in the case of north china, please adjust yourself to the above):
• late august: selection of seed, whole area, application of bottom fertilizer (triple fertilizer for mature farmers, 50 kg of calcium perphosphate and 20 kg of potassium sulfate)。
• 1-7 september: planting in due course, taking care of soil conditions, covering 1-1. 5 centimetres of soil, light repression, covering sunnets or straw to protect seedlings。
• mid-september: when the seed comes out, the cover will be removed in time to spray the fungus against sudden fallout, when the leaf comes out and when。
• october: controlling water fattening, planting loose land and promoting rooting. Water can be introduced once at the age of 2-3。
• in mid-november (pre-frozen): draught water, combined with the pursuit of earthly or decomposed manure to protect the cold. If you're too thick, you have to consider cutting leaves or dust。
• december-february: winter inspections, with conditions for snowproofing, and extreme weather to supplement maize barters。
• returning to youth in march: timely cutting of the temperature, refilling of water, recovery of urea (10-15 kg/acre) and immediate extraction of the pump。
• april-may: earth-breeding, water-watering, fat-seeking, white-blowing and rapid expansion until harvest。
Ix. Principal lessons: a village approach that ends in different ways
I'll tell you two real things. Last year, in the golden village of shandong, the old li qiang stood up to “the day of the day”, and went down on time on 7 september. The old zhang was hot early in the day, taking into account the temperature, and it was broadcast on 1 september. As a result, the onions of the old plums grew to five leaves in the winter, with the prostheses approaching 0. 7 cm, and the prostheses reached four leaves and 0. 5 cm in the winter. After spring, li's onions were cut by more than half and sold like grass. Less than 5 per cent of the old man's head is in the middle of nowhere. The old lee then crouched down on the ground and cried, "i've been growing onions for the rest of my life, and i'm not as good as people watching weather forecasts." you see, it's one step away from the sky and the earth。
I'm sorry
The word "white onions" should not be a shackle. The times have changed, the climate has changed, and the way we grow land has to change. From today, replace the word “death” with the word “temporarily” and the old experience with the new school. So you can avoid the nightmare of spring-springing, and save what you should have produced。
When are you gonna do this? What's so special about you guys? Let's get to the comment section. Let's get to work. If you think that this article has helped you avoid a big pit, that it will be strongly recommended and forwarded to your relatives and friends who are still dying, you can help one
It's hard to start, to look at me, and every agricultural node will give you a clean slate。
